{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1.5SMC82","brand":"Littelfuse Inc.","brandSlug":"littelfuse-inc","productSlug":"1.5SMC82","canonicalUrl":"https://icboms.com/littelfuse-inc/1.5SMC82","factsUrl":"https://icboms.com/api/mcp/products/1.5SMC82","rawCanonicalId":null},"summary":{"shortDescription":"Littelfuse 1.5SMC82 Zener TVS diode, DO-214AB SMC, 1.5kW peak pulse (10/1000 µs), 70.1V reverse standoff, 73.8V minimum breakdown, -55°C to 150°C junction, surface-mount tape and reel.","salesMarkdown":"## 1.5SMC82: what it is and what the ratings mean Rated 1.5 kW peak pulse power at 10/1000 µs waveforms, it sits above the rail at a typical reverse standoff of 70.1 V, breaks down at a minimum of 73.8 V, and clamps the spike to 118.65 V at the peak impulse current of 13.5 A — the clamping chain that defines TVS behaviour in overvoltage events. The 70.1 V standoff rating positions this part for 48 V nominal bus protection — the headroom between 48 V and 70.1 V accommodates common-mode transients on industrial 48 V rails without the TVS conducting in normal operation. ## Sourcing reality — the part is obsolete Littelfuse marks the 1.5SMC82 as obsolete. No official successor order code appears in the on-record cross-reference data. For a last-time-buy analysis, the peak pulse rating of 1.5 kW is the key parameter: if the design relies on that specific energy absorption rating, sourcing the genuine Littelfuse part through independent channels is the first path to evaluate. Confirm the BOM quantity against the available lot — the part ships on tape and reel per the original orderable packaging.","metaTitle":"Littelfuse 1.5SMC82 TVS Zener Diode, 1.5kW 70.1V SMC","metaDescription":"Littelfuse 1.5SMC82 Zener TVS, 1.5kW peak pulse, 70.1V standoff, DO-214AB SMC. Obsolete — quoted to order against BOM. Availability confirmed at RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Circuit Protection"],"specifications":{"Mfr":"Littelfuse Inc.","Type":"Zener","Series":"1.5SMC","Package":"Tape & Reel (TR)","Applications":"General Purpose","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Obsolete","lifecycle_stage":"unknown","Power - Peak Pulse":"1500W (1.5kW)","Base Product Number":"1.5SMC","Operating Temperature":"-55°C~150°C(TJ)","Power Line Protection":"No","Capacitance @ Frequency":"-","Supplier Device Package":"DO-214AB (SMCJ)","Unidirectional Channels":"1","Voltage - Breakdown (Min)":"73.8V","Voltage - Clamping (Max) @ Ipp":"118.65V","Voltage - Reverse Standoff (Typ)":"70.1V","Current - Peak Pulse (10/1000µs)":"13.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/118f1b70ec0f0941665a20e5472af60a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1.5SMC82/alternatives.json"},"ai":{"faq":[{"question":"Is there an official replacement for the 1.5SMC82?","answer":"No official successor order code appears in the on-record cross-reference for this part."},{"question":"What does the 1.5SMC82's 1.5 kW peak pulse rating mean for the design?","answer":"The 1.5 kW rating at a 10/1000 µs waveform is the peak power the TVS can absorb during a transient event without degradation. It is not a continuous power rating — it defines the device's survivable clamping energy on a 48 V rail exposed to lightning or switching transients. The clamping voltage at that pulse is 118.65 V, which sets the max stress the downstream circuit sees."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/littelfuse-inc/1.5SMC82","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/littelfuse-inc/1.5SMC82 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-21T16:18:26.442Z","lastPublished":"2026-07-21T16:18:26.442Z","indexable":true}}